Apparatus for rolling tapered axles.



' W. D. BYNON. APPARATUS FOR ROLLING TAPERED AXLES.

APPLICATION IILED PEBA, 1911; 1,069,869; Patented Aug. 12, 1913.

H I l I maygun SSES I "IIIII WILLIAM D. EYNON, OF PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR ROLLING TAPERED AXLES.

Specification of Letters Patent.

Application filed February 4, 1911. Serial No. 606,473.

To all whom it may concern:

Be it known that I, VVILLIAM D. EYNON, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Apparatus for Rolling Tapered Axles, of which the following is a specification.

This invention relates to a process of and apparatusfor rolling metal forms and the like and more particularly to the rolling of double tapered axles.

In rolling mill practice it is customary to work the material through a series of stages, each of which reduces the thickness to an appreciable extent and finally results in the finished article of required shape and thickness. As the blank travels through the passes of the rolls it is subjected to a com: pressive force on one side and on the other to a resisting force, on each side, a drawing of the metal of substantially the same degree.

In my present process and apparatus for rolling double tapered axles, the material is placed on a suitably shaped table or the like and subjected to compressive action applied by successive passes, whereby a complete, unitary axle of double taper form is rolled of the shape and size desired.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustrating my invention I have shown in the accompanying drawing one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists carr'be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described except as necessitated by the scope of the appended claim.

Referring to the drawings: Figure 1 represents a side elevation of a table embodying my invention. Fig. 2 represents a plan of the same. Fig. 3 represents an elevation of a rolling machine used in connection with my process. Fig. 4 represents a double tapered axle rolled by my process.

Similar numerals of reference indicate corresponding parts in the figures.

both forces producing 11 designates a table forming the essential feature of my process and apparatus of rolling double tapered axles and the like, the same in. the present instance having a groove 2, extending longitudinally throughout the length thereof, the surface 3 forming the bottom of the groove 2, having a double slope, each portion of which extends preferably upwardly from the ends 4: of the table 1 to a point 5, approximately at the center of the said table. 6 designates the top surface of the table and the same is preferably downwardly tapered from each end 4: and also terminates adjacent the center line 5. 7 designates the bottom surface of the table, which is also provided with a double sloped portion, likewise sloped downwardly, so that the two surfaces 6 and 7' are substantially parallel throughout their length. This sloping of the two surfaces is quite important, as thereby the thickness of the table remains constant and the working of the metal during the rolling step is influenced solely by the several sloping surfaces and not by any change in t e thickness of the table.

In the rolling process, the table 1 is adapted to cooperate with and pass between a pair of rolls, which in the present instance consist of upper or compression grooves 8 mounted upon a suitable shaft 9 and a pair of lower or resisting rolls 10 mounted upon a suitable driving shaft 11.,the said upper and lower rolls forming a pass between them for the metal. It will of course be. under.- stood that suitable intervening gearing 12 and 13 is interposed between the shafts, thereby serving to drive the rolls 8 and 10 in opposite directions, thus operating in addition to forming rolls as feeding rolls. It will be noted that the compression rolls, in the present instance, are formed with a groove therein of suitable contour which co- I acts with the metal carried by the table 1 in such a manner as to prevent fins being formed on the completed article. The usual frame 14 forms a' suitable support for the respective shaft and roll mechanism.

15 designates a double tapered axle formed by placing a blank upon the table and passing the same through the rolls 8 and 10.

It will of course be understood that the ends 16 of the axle 15 are formed by a separate step, the same forming no part of my novel double taper process and apparatus, since it is customary generally in the manufacture of axles to hammer the end Patented Aug. 12,1913.

portions to the configuration shown in Fig. 4.

The processof rolling a double tapered axle consists in placing a suitable blank upon a table, such as shown in. Figs. 1 and 20f the drawings, one surface of which table has a configuration of the desired finished article. The blank and supporting surface v or table 1 are then passed between a pair of rolls, such as 8 and 10 whereupon the up-' per or compression roll 8 draws and works the metal on one'side and brings it down to roll 10 is distribute moving the blank from the supporting sur-' approximately the desired shape. The opposite surface of the blank, resting as it does upon the supporting member 1 and moving with it, is not subjected to the drawing action, since the reactin force of the resisting over a considerable area, thereby reducing'the workingv of this side of a blank to a minimum, the result being substantially an unappreciable drawing of this side, although of course it does more or less change in-shape, owing to the double tapering conformation upon which it rests. The next step in the process consists in reface or table and placing it upon another table similar to that shown in Figs. 1 and 2 of the drawings, but in this case with the side previously worked in contact with the face of the supporting member. It will of course be understood that this support-ing member must of necessity be of greater length than the firstmember, in View of the fact that the working of the blank in the first pass has lengthened it somewhat, thereby necessitating the large table for the second step. As the blank is passed through the second set of rollers, a new surface is presented to the compression roll and a drawing takes place which results in a complete double tapered axle, similar in shape to the finished article of Fig. 4, except of course for the ends, which are finished later.

Attention is called to the fact that, if desired, my novel process may be-used in rolling a single taper, the only change necessary being a difierent formation of the table or supporting member.

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable in the statement of the in,- vention and the above description and while I have in the present instance shown and described the preferred' embodiment thereof which has. been found inpractice to give satisfactory and reliable'results, it is to be understood that the same is susceptible of such modification in various particulars as fall within the scope of the appended claim without departing from the'spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is: V In an apparatus for rolling'tapered axles, the combination of a compression roll having a plurality of suitably curved grooves therein, a resisting roll juxtaposed with respect thereto and having a plurality of grooves therein forming a pass with said compression roll grooves, a supporting memher having upper and lower faces inclined from each end of said member toward the center thereof and in parallel relation, and a blank supporting surface oppositely inclined from each end of said supporting member toward the center thereof.

1 WILLIAM D. EYNON. Vti'tnesses:

C. D. MCVAY, F. A. NEWTON. 

